Rigol DM3061, DM3062, DM3064, DM3051, DM3052 Service Guide
...
Service Guide RIGOL
Publication number: SGC01108-1210
Dec. 2008
DM3000 Series Digital Multimeter
© 2008 RIGOL Technologies, Inc. All Rights Reserved
DM3061/2/4
DM3051/2/4
RIGOL
I
Copyright Information
© 2008 RIGOL Technologies, Inc. All Rights Reserved.
RIGOL products are protected by patent law in and outside of P.R. China.
Information in this publication replaces all previously corresponding material.
RIGOL Technologies, Inc. reserves the right to modify or change part of or all the
specifications and pricing policies at company’s sole decision.
NOTE: RIGOL is registered trademark of RIGOL TECHNOLOGIES, INC.
Service Guide for DM3000 Series
RIGOL
II
Safety Notices
Review the following safety precautions carefully before operating the instrument to
avoid any personal injuries or damages to the instrument and any products connected
to it.
To avoid potential hazards, it is necessary to use the instrument as specified by this
user’s guide only.
The instrument should be serviced by qualified personnel only.
Avoid Fire or Personal Injury.
Use Proper Power Cord. Use the power cord designed for the instrument as
authorized in your country only.
Connect and Disconnect Correctly. Do not connect or disconnect test leads while
they are connected to a voltage source.
Ground The Instrument. The instrument is grounded through the grounding
conductor of the power cord. To avoid electric shock the instrument grounding
conductor(s) must be grounded properly before making connections to the input or
output terminals of the instrument.
Observe All Terminal Ratings. To avoid fire or shock hazard, observe all ratings
and marks on the instrument. Follow the user’s guide for further ratings information
before making connections to the instrument.
Do Not Operate Without Covers. Do not operate the instrument with covers or
panels removed.
Use Proper Fuse. Use the fuse of the type, voltage and current ratings as specified
for the instrument.
Avoid Circuit or Wire Exposure. Do not touch exposed connections and
components when power is on.
Do Not Operate With Suspected Failures. If you suspect there is damage with
this product, you have it inspected by qualified service personnel authorized by
RIGOL before further operations.
Provide proper ventilation.
Service Guide for DM3000 Series
RIGOL
III
Do Not Operate in Wet/Damp Conditions.
Do Not Operate in an Explosive atmosphere.
Keep Product Surfaces Clean and Dry.
The disturbance test of all the models meet the limit values of A in the
standard of EN 61326: 1997+A1+A2+A3, but can’t meet the limit values of
B.
WARNING
IEC Measurement Category II. The HI and LO input terminals may be connected to
mains in IEC Category II installations for line voltages up to 300 VAC. To avoid the
danger of electric shock, do not connect the inputs to mains for line voltages above
300 VAC.
Protection Limits: To avoid instrument damage and the risk of electric shock, do not
exceed any of the Protection Limits defined in the following section.
IEC Measurement Category II Overvoltage Protection
To protect against the danger of electric shock, the RIGOL DM3000 series Digital
Multimeter provides overvoltage protection for line-voltage mains connections
meeting both of the following conditions: the HI and LO input terminals are connected
to the mains under Measurement Category II conditions, defined below, and The
mains are limited to a maximum line voltage of 300 VAC. IEC Measurement Category
II includes electrical devices connected to mains at an outlet on a branch circuit.
Such devices include most small appliances, test equipment, and other devices that
plug into a branch outlet or socket. The DM3000 series Digital Multimeter may be used
to make measurements with the HI and LO inputs connected to mains in such devices,
or to the branch outlet itself (up to 300 VAC). However, the DM3000 series Digital
Multimeter may not be used with its HI and LO inputs connected to mains in
permanently installed electrical devices such as the main circuit-breaker panel,
sub-panel disconnect boxes, or permanently wired motors. Such devices and circuits
are subject to overvoltage that may exceed the protection limits of the DM3000 series
Digital Multimeter.
NOTE: Voltages above 300 VAC may be measured only in circuits that are isolated
from mains. However, transient overvoltage is also present on circuits that are
isolated from mains. The DM3000 series Digital Multimeter is designed to safely
Service Guide for DM3000 Series
RIGOL
IV
withstand occasional transient overvoltage up to 2500 Vpk. Do not use this equipment
to measure circuits where transient overvoltage could exceed this level.
Service Guide for DM3000 Series
RIGOL
V
! ! !
Hazardous
Voltage
Refer to
Instructions
Protective
Earth
Terminal
Earth
Ground
Chassis
Ground
!
Safety Terms and Symbols
Terms in This Guide. These terms may appear in this guide:
WARNING: Warning statements identify conditions or practices that could
result in injury or loss of life.
CAUTION: Caution statements identify conditions or practices that could
result in damage to this product or other property.
CAT II (300V): IEC Measurement Category II. Inputs may be connected to
mains (up to 300 VAC) under Category II Overvoltage
conditions.
Terms on the Product: These terms may appear on the product:
DANGER indicates an injury hazard may happen immediately.
WARNING indicates an injury hazard may not happen immediately.
CAUTION indicates that a potential damage to the instrument or other property
may occur.
Symbols on the Product: These symbols may appear on the Instrument:
Service Guide for DM3000 Series
RIGOL
VI
30
6
1
DM
General-Purpose Multimeter
The document covers the description and introduction of six models of DM3000 Series
Digital Multimeter:
DM3061, DM3062, DM3064;
DM3051, DM3052, DM3054.
DM3000 Series Digital Multimeter naming rules:
Prefix of desktop Digital Multimeter
Serial Number
6－6½ , 5－5¾ digit
No.
1－Basic; 2－LAN/GPIB interface;
4－Multiplexer plate with the model and LAN/GPIB interface.
Application examples:
DM3061－6½ DM3000 series, Basic type.
DM3062－6½ DM3000 series, Basic type, equipped with LAN/GPIB module.
DM3064－6½ DM3000 series, Basic type, equipped with LAN/GPIB and multiplexer
module.
DM3051－5¾ DM3000 series, Basic type.
DM3052－5¾ DM3000 series, Basic type, equipped with LAN/GPIB module.
DM3054－5¾ DM3000 series, Basic type, equipped with LAN/GPIB and multiplexer
module.
Service Guide for DM3000 Series
RIGOL
VII
RIGOL DM3000 Series Digital Multimeter is equipment designed for high-precision,
multifunction, automation measurements. The series includes 6½ digits multimeter,
with high-speed data acquisition, automatic measurements, multiplexer, mathematical
operations, and flexible user sensor configurations etc.
DM3000 has a high-resolution monochrome LCD display system for simple waveform
display and record. The concise and user-friendly layout of the front panel has a
keyboard, and back lighted functional buttons, embedded with operating instructions
makes the instrument more flexible, and capable. Interface includes RS-232, USB,
LAN, and GPIB for disk storage and print. It supports virtual terminal display and
control, and remote network access.
With the performance and characteristics given below, you will understand how
DM3000 can satisfy your measurement requirements.
Resolving Resolution: > 6½ digits and 2,400,000 Count;
50kSa/s data sampling rate can be used, such as the rapidly changing
high-precision audio waveform data. Meanwhile waveform can be displayed on
LCD Screen;
24 measurement functions
DC voltage and current, AC voltage and current, two-wire and four-wire
resistance, capacitance, continuity test, diode test, frequency, cycle, ratio
measurements, sensor measurement, and so on;
Math include: maximum, minimum, limit, average, dBm, dB;
Data acquisition functions include: data records, inspection, and automatic
measurement;
True RMS AC voltage and current measurement;
16-Channels multiplexer functional measurement and control software (optional);
DC voltage >10GΩ input impedance to achieve the range of 48V (± 24V);
10 groups measuring set-up storage and unlimited setup through PC interface;
256 x 64 pixel monochrome LCD;
I/O: RS-232, USB, LAN and GPIB;
Built-in USB Host to support USB disk and USB printer;
Simple, convenient and flexible control software: Ultralogger and Ultrasensor.
Service Guide for DM3000 Series
RIGOL
VIII
Structure of This Document
Chapter 1 Performance Specifications
List the Performance specifications of DM3000 series.
Chapter 2 Quick Start
Help users to be familiar with the operating skills of DM3000.
Chapter 3 Performance Test
Introduce how to test the performance so as to know about its current state of
DM3000 well.
Chapter 4 Calibration
Guide you how to calibrate DM3000.
Chapter 5 Disassembly and assembly
Introduce how to disassemble and assemble DM3000 in order to know about more
details about its structure.
Chapter 6 Troubleshooting and General Care
Provide the methods of troubleshooting and general care.
Chapter 7 Service and Support
Information about Service and Support and the like.
Service Guide for DM3000 Series
RIGOL
IX
Contents
General-Purpose Multimeter ......................................................................... VI
Chapter 1 Performance & Specifications .............................................. 1-1
Mechanical Specifications ............................................................................ 1-2
Technical Specifications .............................................................................. 1-3
Specifications of DM306x ..................................................................... 1-3
Specifications of DM305x ................................................................... 1-13
Chapter 2 Quick Start ........................................................................... 2-1
General Inspection ..................................................................................... 2-2
Inspect the Instrument ........................................................................ 2-2
Check the List of Accessories ................................................................ 2-2
Handle Adjustment ..................................................................................... 2-3
Introduction of Front Panel ......................................................................... 2-4
Introduction of Rear Panel .......................................................................... 2-5
Introduction of User Interface ..................................................................... 2-5
Chapter 3 Performance Test ................................................................. 3-1
Equipments for Test ................................................................................... 3-2
Performance Test ....................................................................................... 3-3
Quick Test ........................................................................................... 3-3
Common Test ...................................................................................... 3-3
Optional AC Voltage Test .................................................................... 3-14
Optional AC Current Test .................................................................... 3-15
Capacitance Test ................................................................................ 3-16
Software Connection Test ......................................................................... 3-17
Chapter 4 Calibration ............................................................................ 4-1
Calibration Security Code ............................................................................ 4-2
Calibration Notice ....................................................................................... 4-3
DC Voltage, DC Current, Resistance Calibration ............................................ 4-4
AC Voltage and AC Current Calibration ......................................................... 4-6
Frequency Calibration ................................................................................. 4-8
Capacitance Calibration ............................................................................... 4-8
Chapter 5 Disassembly & Assembly ...................................................... 5-1
The Disassembly and Assembly Notice ......................................................... 5-2
The 3D View of DM3000 ............................................................................. 5-3
Service Guide for DM3000 Series
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X
To Disassemble and Assemble .................................................................... 5-5
Handle, Rear Panel and Metallic Shell .......................................................... 5-5
To Disassemble and Assemble .................................................................... 5-8
Fuse Socket, BNC Module and GPIB PCB ..................................................... 5-8
To Disassemble and Assemble ................................................................... 5-11
Filter Board and Transformer ..................................................................... 5-11
To Disassemble and Assemble ................................................................... 5-12
Front Panel and LCD ................................................................................. 5-12
To Disassemble and Assemble ................................................................... 5-13
Multiplexer Board, Motherboard and Key Board PCB .................................... 5-13
Chapter 6 Troubleshooting & Maintenance ........................................... 6-1
DM3000 Principle Introduction .................................................................... 6-2
Troubleshooting ......................................................................................... 6-4
Common Troubleshooting .................................................................... 6-4
Components Inspection ....................................................................... 6-7
Replaceable Part List .......................................................................... 6-10
Maintenance and Cleaning ......................................................................... 6-12
Chapter 7 Service & Support ................................................................. 7-1
Warranty ................................................................................................... 7-1
Contact Us ................................................................................................ 7-3
Index ................................................................................................................ 1
Service Guide for DM3000 Series
RIGOL
XI
Figure Contents
Figure 1-1 Dimension of DM3000 ................................................................ 1-2
Figure 2-1 The Method of Adjusting Handle ................................................. 2-3
Figure 2-2 Adjustable Positions for Handle ................................................... 2-3
Figure 2-3 Sketch map of Front Panel ......................................................... 2-4
Figure 2-4 Sketch map of Rear Panel .......................................................... 2-5
Figure 2-5 Sketch map of User Interface ..................................................... 2-5
Figure 3-1 ................................................................................................. 3-4
Figure 3-2 UltraLogger is successfully connected ....................................... 3-17
Figure 3-3 UltraSensor is successfully connected ........................................ 3-18
Figure 4-1 The Input HI-LO and Sense/Ref HI-LO Terminals in Short Circuit... 4-4
Figure 5-1 The Exterior 3D View of DM3000 ................................................ 5-3
Figure 5-2 The Interior 3D View of DM3000 ................................................ 5-4
Figure 5-3 The Schematic of Disassembling and Assembling Handle .............. 5-5
Figure 5-4 The Schematic of Disassembling and Assembling Rear Panel ........ 5-6
Figure 5-5 The Schematic of Disassembling and Assembling Metallic Shell ..... 5-7
Figure 5-6 The Schematic of Disassembling and Assembling Fuse Socket ...... 5-8
Figure 5-7 The Schematic of Disassembling and Assembling BNC Module .... 5-9
Figure 5-8 The Schematic of Disassembling and Assembling GPIB PCB ...... 5-10
Figure 5-9 The Schematic of Disassembling and Assembling ....................... 5-11
Figure 5-10 The Schematic of Disassembling and Assembling ..................... 5-12
Figure 5-11 The Schematic of Disassembling and Assembling Multiplexer Board
....................................................................................................... 5-13
Figure 5-12 The Schematic of Disassembling and Assembling Motherborad . 5-14
Figure 5-13 The Schematic of Disassembling and Assembling Key Board PCB
....................................................................................................... 5-15
Figure 6-1 Circuit Diagram of DM3000 series ............................................... 6-2
Figure 6-2 The Sketch Map of Fuse Replacement ......................................... 6-4
Figure 6-3 Transformer Sketch Map ............................................................ 6-7
Service Guide for DM3000 Series
RIGOL
XII
Table Contents
Table 3-1 Recommended Equipments ......................................................... 3-2
Table 3-2 Zero Offset of the Standard Equipment (DM306X) ........................ 3-5
Table 3-3 Zero Offset of the Standard Equipment (DM305X) ........................ 3-6
Table 3-4 DC Gain Error of the Standard Equipment (DM306X) ..................... 3-7
Table 3-5 DC Gain Error of the Standard Equipment (DM305X) ..................... 3-8
Table 3-6 AC Voltage Gain Error of the standard equipment (DM306X) .......... 3-9
Table 3-7 AC Voltage Gain Error of the Standard Equipment (DM305X) ....... 3-10
Table 3-8 AC Current Gain Error of the Standard Equipment (DM306X) ....... 3-11
Table 3-9 AC Current Gain Error of the Standard Equipment (DM305X) ....... 3-12
Table 3-10 Frequency Gain Error of the Standard Equipment (DM306X) ...... 3-13
Table 3-11 Frequency Gain Error of the Standard Equipment (DM305X) ...... 3-13
Table 3-12 Accessional AC Voltage Test Error (DM306x) ............................. 3-14
Table 3-13 Accessional AC Voltage Test Error（DM305X） .......................... 3-14
Table 3-14 Accessional AC Current Test Error（DM306X） ......................... 3-15
Table 3-15 Accessional AC Current Test Error（DM305X） ......................... 3-15
Table 3-16 Capacitance Test Error of the Standard Equipment (DM306X) .... 3-16
Table 3-17 Capacitance Test Error of the Standard Equipment (DM305X) .... 3-16
Table 4-1 DC Zero and DC Gain Calibration Input Value (DM306X) ................ 4-5
Table 4-2 DC Zero and DC Gain Calibration Input Value (DM305X) ................ 4-5
Table 4-3 AC Calibration Input Value .......................................................... 4-7
Table 4-4 Capacitance Calibration input Value ............................................. 4-8
Table 6-1 Check Table of Voltages among Windings of Transformer .............. 6-8
Table 6-2 Replaceable Part List ................................................................ 6-11
Service Guide for DM3000 Series
RIGOL
1-1
Chapter 1 Performance & Specifications
This chapter covers the following topics:
Mechanical Specifications
Technical Specifications
Specifications of DM306x
Specifications of DM305x
Service Guide for DM3000 Series
RIGOL
1-2
Mechanical Specifications
Weight: 2.5 kg
Dimension: W× H× D＝231.6mm× 107mm× 290.5mm
Figure 1-1 Dimension of DM3000
Service Guide for DM3000 Series
RIGOL
1-3
Function
Range
[3]
Test Current
or Burden
Voltage
24 Hour
[2]
Tcal± 1℃
90 Day
Tcal± 5℃
1 Year
Tcal± 5℃
Temperature
Coefficient
0 ℃ to
(Tcal–5 ℃)
(Tcal + 5 ℃) to
55 ℃
DC
0.0030+0.00
0.0065+0.00
0.0085+0.00
0.0020+0.00
0.0060+0.00
0.0078+0.00
0.0020+0.00
0.0065+0.00
0.0085+0.00
0.0020+0.00
0.0082+0.00
0.0100+0.00
[5]
0.0025+0.00
0.0095+0.00
0.0110+0.00
DC
<0.03V
0.010+0.014
0.060+0.035
0.076+0.050
<0.3V
0.010+0.002
0.058+0.006
0.075+0.006
<0.3V
0.020+0.002
0.065+0.005
0.081+0.005
<0.3V
0.020+0.016
0.065+0.030
0.073+0.030
[7]
<0.6V
0.300+0.020
0.330+0.020
0.330+0.020
[4
1mA
0.0106+0.00
0.018+0.011
0.020+0.011
1mA
0.0022+0.00
0.010+0.002
0.015+0.002
100uA
0.0020+0.00
0.010+0.001
0.015+0.001
10uA
0.0020+0.00
0.010+0.001
0.015+0.001
2uA
0.0020+0.00
0.010+0.001
0.015+0.001
200nA
0.0112+0.00
0.0550+0.00
0.056+0.006
200nA||10M
0.300+0.010
0.800+0.011
0.800+0.015
Diode Test
[6]
1mA
0.005+0.050
0.008+0.050
0.010+0.050
1mA
0.005+0.050
0.008+0.050
0.010+0.050
Technical Specifications
Specifications of DM306x
DC Characteristics
Accuracy Specifications (% of reading + % of range)
[1]
Notes：
[1] Specifications are for 60 minute warm–up and set reading resolution as 6½ .
[2] Relative to calibration standards.
Service Guide for DM3000 Series
RIGOL
1-4
[3] 20% over range on all ranges, except DCV 1000V, ACV 750V, DCI and ACI 10A range.
[4] Specifications are for 4–wire resistance function, or 2–wire resistance using Math Null. Without
Math Null, add 0.2 Ω additional errors in 2–wire resistance function.
[5] For each additional volt over ± 500 VDC add 0.02 mV of error.
[6] Accuracy specifications are for the voltage measured at the input terminals only. 1mA test
current is typical. Variation in the current source will create some variation in the voltage drop
across a diode junction.
[7] As continuous current higher than 7A DC or AC RMS, 30 seconds needs to be off after connecting
30s.
Settling Considerations:
Setting time of readings is affected by source impedance, cable dielectric characteristics and input
signal changes. Generally, the Settling time of Common readings is about 1.5s when Low source
impedance less than 1kΩ.
Service Guide for DM3000 Series
RIGOL
1-5
Function
Range
[3]
Frequency
Range
24 Hour
[2]
Tcal± 1℃
90 Day
Tcal± 5℃
1 Year
Tcal± 5℃
Temperature
Coefficient
0℃ to (Tcal–5 ℃)
(Tcal + 5 ℃) to 55 ℃
True
RMS AC
Voltage
[4]
200.000m
V
3Hz-10Hz
5.0+0.05
5.0+0.07
5.1+0.07
0.15+0.006
10Hz-40Hz
0.53+0.05
0.57+0.06
0.60+0.07
0.035+0.004
40Hz-20kHz
0.08++0.05
0.14+0.06
0.15+0.07
0.005+0.004
20kHz-50kHz
0.10+0.05
0.14+0.06
0.16+0.05
0.011+0.005
50kHz-100kHz
0.5+0.10
0.6+0.10
0.60+0.10
0.06+0.008
100kHz-300kHz
4.0+0.80
4.5+0.80
4.50+0.80
0.2+0.02
2.00000V
to
750.00V
3Hz-10Hz
5.0+0.05
5.0+0.07
5.10+0.07
0.15+0.006
10Hz-40Hz
0.35+0.05
0.37+0.06
0.38+0.07
0.035+0.003
40Hz-20kHz
0.08+0.05
0.10+0.06
0.11+0.07
0.005+0.003
20kHz-50kHz
0.40+0.05
0.40+0.06
0.40+0.07
0.011+0.005
50kHz-100kHz
0.55+0.10
0.60+0.10
0.60+0.10
0.07+0.008
100kHz-300kHz
4.0+0.80
4.0+0.80
4.00+0.80
0.2+0.02
True
RMS AC
Current
[
20.0000m
A
3Hz-10Hz
5.0+0.05
5.1+0.07
5.1+0.07
0.15+0.006
10Hz-40Hz
0.55+0.05
0.61+0.06
0.64+0.07
0.035+0.006
40Hz-5kHz
0.13+0.05
0.18+0.06
0.22+0.07
0.015+0.006
5kHz-10kHz
0.20+0.25
0.2+0.25
0.22+0.25
0.03+0.006
200.000m
A
3Hz-10Hz
5.0+0.05
5.1+0.07
5.1+0.07
0.15+0.006
10Hz-40Hz
0.55+0.05
0.62+0.06
0.64+0.07
0.035+0.006
40Hz-5kHz
0.13+0.05
0.20+0.06
0.22+0.07
0.015+0.006
5kHz-10kHz
0.20+0.25
0.20+0.25
0.22+0.25
0.03+0.006
1.00000A
3Hz-10Hz
5.0+0.16
5.1+0.25
5.2+0. 27
0.24+0.047
10Hz-40Hz
0.64+0.16
0.70+0.25
0.71+0.27
0.035+0.047
40Hz-5kHz
0.22+0.16
0.28+0.25
0.29+0.27
0.015+0.047
5kHz-10kHz
0.35+0.2
0.35+0.4
0.35+0.4
0.03+0.047
10.0000A
[
7]
3Hz-1Hz
5.3+0.05
5.40+0.07
5.4+0.07
0.24+0.006
10Hz-40Hz
0.8+0.05
0.9+0.06
0.9+0.07
0.035+0.006
40Hz-5kHz
0.40+0.06
0.42+0.06
0.43+0.07
0.015+0.006
5kHz-10kHz
0.42+0.1
0.42+0.1
0.43+0.1
0.03+0.006
AC Characteristics
Accuracy Specifications (% of reading + % of range)
[1]
Notes：
[1] Specifications are for 60 minute warm–up and set reading resolution as 5½ .
[2] Relative to calibration standards.
Service Guide for DM3000 Series
RIGOL
1-6
[3] 20% over range on all ranges, except DCV 1000V, ACV 750V, DCI and ACI 10A range.
[4] Specifications are for sine wave input >5% of range. For inputs from 1% to 5% of range and
<50 kHz, add 0.1% of range additional error. For 50 kHz to 100 kHz, add 0.13% of range.
750 VAC range is limited to 8x107 Volt-Hz.
[5] Specifications are for sine wave input >5% of range. Add 0.1% of the range for the sine wave
input is 1%~5% of the range.
[6] Generally 30% of reading error existing at 100 kHz.
[7] As continuous current higher than 7A DC or AC RMS, 30 seconds needs to be off after connecting
30s.
Low Frequency Characteristics
Following three filter settings are available:
Slow: 3Hz~300 kHz
Mid: 20Hz~300 kHz
Fast: 200Hz~300 kHz
Measurement Considerations
Frequencies greater than upper settings are considered with no additional errors.
Settling Considerations
Applying >300VRMS (or >2ARMS) will cause self-heating in signal-conditioning components. These
errors are included in the instrument specifications. Internal temperature changes due to
self-heating may cause additional error on lower ac voltage ranges. The additional error will be less
than 0.02% of reading and will generally dissipate within a few minutes.
Service Guide for DM3000 Series
RIGOL
1-7
Function
Rang
e[3
Frequency
Range
24 Hour
[2]
Tcal± 1℃
90 Day
Tcal± 5℃
1 Year
Tcal± 5℃
Temperature
Coefficient
0 ℃ to (Tcal–5 ℃)
(Tcal + 5 ℃) to 55 ℃
Frequency
Period
200mV
to
750V
[3]
3Hz-5Hz
0.07
0.07
0.07
0.005
5Hz-10Hz
0.04
0.04
0.04
0.005
10Hz-40Hz
0.02
0.02
0.02
0.001
40Hz-300kHz
0.005
0.006
0.007
0.001
20mA
to 10A
[4]
3Hz-5Hz
0.07
0.07
0.07
0.005
5Hz-10Hz
0.04
0.04
0.04
0.005
10Hz-10kHz
0.005
0.006
0.007
0.001
Frequency and Period Characteristics
Accuracy Specifications (% of reading)
[1]
Notes：
[1] Specifications are for 60 minute warm–up and set reading resolution as 6½ .
[2] Relative to calibration standards.
[3] For AC input voltages 10% to 120% of range except special mark. 750V range is limited to
750VRMS. 200mV range is specified as full scale or greater inputs. For inputs from 20mV to
200mV, multiply total % of reading error by 10.
[4] For the 20mA, 200mA, 10A ranges, the AC input current from 10% to 120% of range except
special mark. 1A range is specified as the AC input current from 50% to 120% of range.
Measurement Considerations
Errors are brought within all the frequency counters when measuring low–voltage, low–frequency
signals. Shielding inputs could redound to reduce measuring errors brought from external noise.
Settling Considerations
Errors will occur when attempting to measure the frequency or period of an input following a dc
offset voltage change. The input blocking RC time constant must be allowed to fully settle (up to 1
sec) before the most accurate measurements are possible.
Service Guide for DM3000 Series
RIGOL
1-8
Function
Range[2
Test Current
1 Year
Tcal± 5℃
Temperature
Coefficient
0 ℃ to (Tcal–5 ℃) (Tcal+ 5 ℃)
to 55 ℃
Capacitance
2.000nF
200nA
2 + 2.5
0.05+0.05
20.00nF
1uA
1 + 0.5
0.05+0.01
200.0nF
10uA
1 + 0.5
0.01+0.01
2.000uF
100uA
1 + 0.5
0.01+0.01
20.00uF
1mA
1 + 0.5
0.01+0.01
Capacitance Characteristics
Accuracy Specifications (% of reading + % of range)
Notes：
[1] Specifications are for 60 minute warm–up using Math Null. Additional errors may occur for
non–film capacitors.
[2] Specifications are for 1% to 120% of range on the 2nF range and 10% to 120% of range on all
other ranges.
[1]
Service Guide for DM3000 Series
RIGOL
1-9
Measuring Characteristics
DC Voltage
Measurement Method: ΣΔ A/D conversion
Input Resistance:
200mV, 2V, 20V ranges Selectable 10MΩ ± 2% or >10GΩ
200V, 1000V ranges 10MΩ ± 2%
Resistance
Measurement Method: 4-wire or 2-wire.
Current source referenced to LO input.
Open-circuit Voltage: Limit less than 7V.
Max. Lead Resistance: 10% of range per lead for 200Ω, 1kΩ range. 1kΩ per lead
(4-wire ohms) on all other ranges.
Input Protection: 1000V, all ranges.
DC Current
Shunt Resistor: 0.025Ω for 1A, 10A
1.025Ω for 200mA
11.025Ω for 2mA and 20mA
Input Protection: Externally accessible 10A, 250V fuse
Internal 12A, 250V fuse
Continuity / Diode Test
Measurement Method: 1mA ± 0.2% test current, Limit in <7V
Response Time: 25 samples / sec
Continuity Threshold: Adjustable from 1Ω to 2000Ω
Input Protection: 1000V
True RMS AC Voltage
Measurement Method: AC-coupled True RMS – measures the ac component of input
with up to 400Vdc of bias on any range.
Input Impedance: 1MΩ ± 2%, in parallel with <100pF
Input Protection: 750VRMS all ranges
True RMS AC Current
Measurement Method: Direct coupled to the fuse and shunt. AC-coupled True RMS
measurement (measures the ac component only)
Service Guide for DM3000 Series
RIGOL
1-10
Max. Input: The DC + AC current peak value <300% of the range. The RMS
current including DC current <10A.
Shunt Resistor: 0.025Ω for 1A, 10A,
1.025Ω for 200mA,
11.025Ω for 20mA
Input Protection: Externally accessible 10A, 250V fuse
Internal 12A, 250V fuse
Frequency and Period
Measurement Method: Reciprocal-counting technique. AC-coupled input using the ac
voltage measurement function.
Input Impedance (Voltage Signal):1MΩ ± 2%, in parallel with <100pF
Shunt Resistor (Current Signal): 0.025Ω for 1A, 10A,
1.025Ω for 200mA,
11.025Ω for 20mA
Input Protection: 750VRMS all ranges;
Externally accessible 10A, 250V fuse
Internal 12A, 250V fuse
Capacitance
Measurement Method: Current input with measurement of resulting ramp.
Connection Type: 2-wire
Triggering and Memory
Samples per Trigger: 1 to 2,000,000
Trigger Delay: 0 to 3600 sec
Input Level: TTL compatible (High level when left trigger input open)
Trigger Condition: Selectable Rising, Falling, Low-level, High-level.
Input Impendence: >20kΩ, in parallel with 400pF, AC-coupled
Delay: <1μs
Min Pulsewidth: 1μs
VMC Output:
Level: TTL compatible (Input to ≥ 1kΩ load)
Output Polarity: Selectable Positive, Negative
Output Impendence: 200Ω, typical
Nonvolatile Memory: 512K readings
Volatile Memory: 2M readings
Service Guide for DM3000 Series
RIGOL
1-11
!
Rear panel multiplexer function (only for the model equipped with multiplexer module)
Including the model of multiplexer card, the voltage limit of LO relative to safe ground
falls to 200Vpeak (Max).
Channel: 12 voltages, 4 current, additional protections.
Measurement Type：2-wire resistance, capacitance, DC voltage, DC current, AC voltage, AC
current, period, diode and frequency.
Work Characteristics：The precision of performance is consistent with the value measured from
front panel. The switch time of multiplexer card is 50ms; the switch time of auto measurement is
600ms. (4½ digits)
Input Characteristic: Difference input voltage is 150Vpeak(Max); the isolated voltage in
interchannel is 150Vpeak(Max)，the current terminal is input 1Apeak(Max), channel isolation > 60dB
(@10KHz)，the voltage of all the terminal relative to safe ground is 150Vpeak(Max).
Input Protection: 2A restore the fuse in current channel, 250V limit voltage.
500mA melt the fuse in voltage channel with multiplexer card.
Real-time Clock
Precision: 1min/month (Environment Temperature >0℃)
Clock battery Life: 2 years
Sensor Measurement
Voltage, current, resistance and frequency random sensor
Math Functions
Null, Min/Max/Average, dBm, dB, Limit Test (with TTL output)
Other Functions
Reading Hold, Ratio Measurement
High-speed Sampling
50kSa/s (In Datalog function)
Reading Resolution
2,400,000 Count, >6½ digits
USB I/O Interface
USB Host, USB Device interface. It can support U-disk and USB printer.
Service Guide for DM3000 Series
RIGOL
1-12
Other I/O Interface
RS-232, GPIB (Selectable) support for SCPI command, LAN (Selectable)
General Specifications
Display: 256 x 64 pixels LCD to support multi-display, menu, multi-
language help and waveform display.
Data Acquisition and Virtual: Support Microsoft® Windows 98/Me, Windows 2000/XP
Power Supply: 100V/ 120V/ 220V/ 240V ± 10%
Power Line Frequency: 45Hz to 66Hz
Power Consumption: 20VA peak
Operating Environment: Full accuracy for 0℃ to 55℃, 95% R.H. at 40℃ non-condensing
Storage Temperature: -20℃ to 70℃
Safety: Measurement CAT II 300V, CAT I 1000V. Pollution degree 1.
Vibration & Shock: Mil-T-28800E, Type III, Class 5 (Sine Only)
Weight: 2.5kg
Size (H x W x D): 107.0mm x 231.6mm x 290.5m
Service Guide for DM3000 Series
RIGOL
1-13
Function
Range
[2]
Test Current
or Burden
Voltage
Input
Impedance
1 Year
23℃±5℃
Temperature
Coefficient
0 ℃ to 18 ℃
28 ℃ to 55 ℃
DC
Voltage
400.000mV
10MΩ or>10GΩ
0.025 + 0.008
0.0015+0.0005
4.00000V
10MΩ or>10GΩ
0.025 + 0.006
0.0010+0.0005
40.0000V
10MΩ
0.025 + 0.006
0.0020+0.0005
400.000V
10MΩ
0.030 + 0.006
0.0020+0.0005
1000.00V
[4]
10MΩ
0.030 + 0.005
0.0015+0.0005
DC
Current
2.00000mA
<0.03V
0.050 + 0.070
0.0040+0.0070
20.0000mA
<0.3V
0.050 + 0.008
0.0040+0.0007
200.000mA
<0.3V
0.050 + 0.009
0.0040+0.0008
1.00000A
<0.3V
0.100 + 0.070
0.0100+0.0062
10.0000A
[5]
<0.6V
0.200 + 0.007
0.0100+0.0007
Resistance
[
400.000Ω
1mA 0.050 + 0.010
0.0030+0.0005
4.00000kΩ
100uA
0.015 + 0.006
0.0030+0.0005
40.0000kΩ
10uA 0.015 + 0.006
0.0030+0.0005
400.000kΩ
2uA 0.030 + 0.007
0.0030+0.0005
4.00000MΩ
200nA
0.060 + 0.010
0.0030+0.0005
100.000MΩ
200nA ||10MΩ
2.00 + 0.005
0.1500+0.0005
Diode Test
2.4000V
[6]
1mA 0.05 + 0.010
0.0050+0.0005
Continuity
2000Ω
1mA 0.05 + 0.010
0.0050+0.0005
Specifications of DM305x
DC Characteristics
Accuracy Specifications (% of reading + % of range)
[1]
Notes：
[1] Specifications are for 60 minute warm–up and set reading resolution as 5¾ and calibration
temperature between 18 ℃ and 28 ℃.
[2] 20% over range on all ranges except DCV 1000V, ACV 750V, DCI and ACI 10A range.
[3] Specifications are for 4–wire resistance function or 2–wire resistance using Math Null. Without
Math Null, add 0.2 Ω additional errors in 2–wire resistance function.
[4] For each additional volt over ± 500 VDC add 0.02 mV of error.
[5] For current terminal, > 7A DC or ACRMS for 30 seconds ON and 30 seconds OFF.
[6] Accuracy specifications are for the voltage measured at the input terminals only. 1 mA test
Service Guide for DM3000 Series
RIGOL
1-14
current is typical.
Variation in the current source will create some variation in the voltage drop across a diode
junction.
Settling Considerations
Reading settling times are affected by source impedance, cable dielectric characteristics, and input
signal changes. Typically, settling time is 1.5s when source impedance less than 1kΩ.
Service Guide for DM3000 Series
RIGOL
1-15
Function
Range
[2]
Frequency Range
1 Year
23℃±5℃
Temperature
Coefficient
0 ℃ to 18 ℃
28 ℃ to 55 ℃
True RMS AC
Voltage
[3]
200.000mV
10Hz-45Hz
1.0 + 0.1
0.02+0.02
45Hz-20kHz
0.2 + 0.1
0.02+0.02
20kHz-50kHz
2.0 + 0.2
0.02+0.02
50kHz-100kHz
4.0 + 0.2
0.02+0.02
2V to
750.00V
10Hz-45Hz
1.0 + 0.1
0.02+0.02
45Hz-20kHz
0.2 + 0.1
0.02+0.02
20kHz-50kHz
1.0 + 0.1
0.02+0.02
50kHz-100kHz
2.0 + 0.2
0.02+0.02
True RMS AC
Current
[4, 6]
20.0000mA
10Hz-45Hz
1.5+0.1
0.02+0.02
45Hz-2kHz
0.5+0.1
0.02+0.02
2kHz-10kHz
2.0+0.2
0.02+0.02
200.000mA
10Hz-45Hz
1.5+0.1
0.02+0.02
45Hz-2kHz
0.5+0.1
0.02+0.02
2kHz-10kHz
2.0+0.2
0.02+0.02
1.00000A
10Hz-45Hz
1.5+0.5
0.02+0.05
45Hz-2kHz
0.5+0.5
0.02+0.05
2kHz-10kHz
2.0+0.5
0.02+0.05
10.0000A[6]
10Hz-45Hz
1.5+0.1
0.02+0.02
45Hz-2kHz
0.5+0.1
0.02+0.02
2kHz-5kHz
2.0+0.2
0.02+0.02
AC Characteristics
Accuracy Specifications (% of reading + % of range)
[1]
Notes：
[1] Specifications are for 60 minute warm–up and set reading resolution as 5½ and calibration
temperature between 18 ℃ and 28 ℃.
[2] 20% over range on all ranges, except DCV 1000V, ACV 750V, DCI and ACI 10A range.
[3] Specifications are for sine wave input >5% of range. For inputs from 1% to 5% of range and
<50 kHz, add 0.1% of range additional error. For 50 kHz to 100 kHz, add 0.13% of range.
750Vac range limited to 100 kHz or 8x107 Volt-Hz.
[4] Specifications are for sine wave input >5% of range. Add 0.1% of the range for the sine wave
input is 1%~5% of the range.
[5] For current terminal, > 7A DC or ACRMS for 30 seconds ON and 30 seconds OFF.
Service Guide for DM3000 Series
RIGOL
1-16
[6] Typically 30% of reading error at 100 kHz.
Low Frequency Performance
Three filter settings are available:
Slow: 3Hz~300kHz
Mid: 20Hz~300kHz
Fast: 200Hz~300kHz
Measurement Considerations
Frequencies greater than upper filter settings are considered with no additional errors.
Settling Time Considerations
Applying >300VRMS (or >1ARMS) will cause self-heating in signal-conditioning components. These
errors are included in the instrument specifications. Internal temperature changes due to
self-heating may cause additional error on lower ac voltage ranges. The additional error will be less
than 0.02% of reading and will generally dissipate within a few minutes.
Service Guide for DM3000 Series
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